We should make it clear whether the damage was caused in transit or during the unloading process, or by other reasons.
我们要弄清楚货物是否在运输途中受损,还是在卸货过程中受损,或者别的原因。
Our knowledge of the oceans a hundred years ago was confined to the two-dimensional shape of the sea surface and the hazards of navigation presented by the irregularities in depth of the shallow water close to the land.
100年前,我们只知道海洋是二维平面形的,以及靠近陆地浅水区的深浅不一能给航行带来危险。